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100 bytes added, 04:28, 1 April 2025
/* Bit 1 (Alternate) and Bit 0 (Hold) */
volume = ~volume & 0x0F if !(alternate ^ hold)
direction = 0 if hold else ~direction & 1 if alternate
 
When bit3 = 0, volume and direction at the end of a period always are:
 
volume = 0
direction = 0
=== 0Eh - External Dataregister Port A ===
Phi2x
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